Mills occupied by George Brettle and Company Limited (that part along the Chapel Street frontage, bounded on the north by the 1834 building, including northern rear wing, and, on the south, by the recessed, single storey red brick building)

The mills occupied by George Brettle and Company Limited, located along the Chapel Street frontage, date back to 1834. This large stone building features a symmetrical classical facade and is bounded to the north by an 1834 building, which includes a northern rear wing, and to the south by a recessed, single-storey red brick building.

The structure is made of ashlar stone and has a slate roof, rising to three storeys. The end bays of the northern building each have three windows that are slightly advanced under a cornice. The central section has thirteen windows, mostly fixed lights, with some sashes that include glazing bars. There are angle piers, but no cornice in the centre. A segmental arched entrance with a keystone is located on the south side of the central section, next to a mounting block.

At the rear, the two-storey northern wing has a hipped slate roof and similar window styles, except for one round-arched ground floor window on the rear elevation. To the south of this wing is a two-storey, three-bay stone-faced section that features three round-arched windows with glazing bars, a parapet, and a red brick rear. Adjoining this to the south is a recessed single-storey red brick building from the earlier to mid-19th century, which has stone eaves and a hipped slate roof, along with nine arched windows that also have glazing bars.

Originally, the 1834 building served as a warehouse for the domestic framework knitting industry.